Row UPDATE not working (PK Table)

### Search before asking

- [x] I searched in the [issues](https://github.com/apache/fluss/issues) and found nothing similar.

### Fluss version

0.8.0 (latest release)

### Please describe the bug 🐞

Hi there,

I am following this quick-start tutorial (https://fluss.apache.org/docs/quickstart/flink/), and I am facing the following issue (not part of the instructuions) when trying to UPDATE a row of the fluss_order table:

UPDATE fluss_order SET `order_priority` = 'high' WHERE `order_key` = 14404096;
[ERROR] Could not execute SQL statement. Reason:
java.lang.IllegalArgumentException: The field count of the row does not match the table schema. Expected: 6, Actual: 7

### Solution

_No response_

### Are you willing to submit a PR?

- [ ] I'm willing to submit a PR!